Rcpp 0.8.9

November 28, 2010

(This article was first published on Romain Francois, Professional R Enthusiast, and kindly contributed to R-bloggers)

Rcpp 0.8.9 was pushed to CRAN recently. Apart from minor bug fixes, this release concentrates on modules, with lots of new features to expose C++ functions and classes through R reference classes.

Apollo 17 Command Module

The Rcpp-modules vignette has all the details, and the mjor points are highlighted in the NEWS entry below:

0.8.9   2010-11-28 (or even -27)

    o   Many improvements were made to in 'Rcpp modules':

        - exposing multiple constructors

        - overloaded methods

        - self-documentation of classes, methods, constructors, fields and 

        - new R function "populate" to facilitate working with modules in 

        - formal argument specification of functions.

        - updated support for Rcpp.package.skeleton.

        - constructors can now take many more arguments.
    o   The 'Rcpp-modules' vignette was updated as well and describe many
        of the new features

    o   New template class Rcpp::SubMatrix and support syntax in Matrix
        to extract a submatrix: 
           NumericMatrix x = ... ;
           // extract the first three columns
           SubMatrix y = x( _ , Range(0,2) ) ; 
           // extract the first three rows
           SubMatrix y = x( Range(0,2), _ ) ; 
           // extract the top 3x3 sub matrix
           SubMatrix y = x( Range(0,2), Range(0,2) ) ; 

    o   Reference Classes no longer require a default constructor for
        subclasses of C++ classes    

    o   Consistently revert to using backticks rather than shell expansion
        to compute library file location when building packages against Rcpp
	on the default platforms; this has been applied to internal test
        packages as well as CRAN/BioC packages using Rcpp

To leave a comment for the author, please follow the link and comment on their blog: Romain Francois, Professional R Enthusiast.

R-bloggers.com offers daily e-mail updates about R news and tutorials on topics such as: Data science, Big Data, R jobs, visualization (ggplot2, Boxplots, maps, animation), programming (RStudio, Sweave, LaTeX, SQL, Eclipse, git, hadoop, Web Scraping) statistics (regression, PCA, time series, trading) and more...

If you got this far, why not subscribe for updates from the site? Choose your flavor: e-mail, twitter, RSS, or facebook...

Tags: , , ,

Comments are closed.


Never miss an update!
Subscribe to R-bloggers to receive
e-mails with the latest R posts.
(You will not see this message again.)

Click here to close (This popup will not appear again)